After her sister's murder, Nic, her younger sister and two friends seek solace through a Pacific island kayaking adventure. Hours into the trip the women are stalked by a shark and must band together, face their fears and save each other.
A struggling writer finds herself at the center of the story she is covering when brutally attacked by a notorious cult leader and mass murderer, a man who exerts an inexplicable control over his followers.
Upper-middle class teen brothers and their newly-met stepsister take a road trip to the Mexico-U.S. border in a tense revenge journey to track down the man responsible for the accident that caused their father's death.